Shuttle and needle mechanism for weaving



March 13, 1934. HAHNE 1,950,404

SHUTTLE AND NEEDLE MECHANISM FOR WEAVING Filed Jul zl. 1931 4 Sheets-Sheet 1 INVENTOR 1 71. I

March 13, 1934. M, HAH NE 1,950,404

SHUTTLE AND NEEDLE MECHANISM FOR WEAVING Filed July 21. 1931 4 Sheet s-Sheet 3 INVENTOR 772a; JV 421 726? W 4110A ORNEY March 13, 1934. M. HAHNE SHUTTLE AND NEEDLE MECHANISM FOR WEAVING Fild July,2l. 1931 4 Sheets-Sheet 4 Patented Mar. 13,

PATENT OFFICE seems in NEEDLE MECHANISM For.

WEAVING Max Hahne, New York, N. Y., asoignor of onehalf to Seymour H. Bipin, New York, N.'Y.

Application July 21, 1931, Serial No. 552,1?3

' Claims.

This invention relates to the construction of weaving looms of the Jacquard type. The object of the invention is to greatly simplify the construction of certain parts of such a loom thus 5 enabling the loom to function with accuracy and speed, and to eliminate the defects found in the present types of loom now in use.

In looms of the Jacquard type, and partidularly those used for color work, such as, for instance, the manufacture of woven labels, ribbons, tapes or broad piece goods, it is customary to utilize a loom battenwhich carries a .number of shuttles, since a separate shuttle is required for each color of weft thread used to form the pattern inthe weaving. Accordingly, the weight of a great number of shuttles is imposed on the 'batten, this serving to decrease the weaving speed of the loom considerably. Additionally, at times the wooden shuttles of the character used exhibit a tendency to stick in the guides provided for them which often results in the threads carried by such shuttles breaking. Thisrequires the stopping of-the loom until the damage has been rectified by the repair of the thread.

Through the use of my improved structure, the many shuttles now employed for carrying the various inserted colors in jacquard weaving is dispensed with. I utilize instead, a simple mechanism by which the various colored threads are selectively picked up by a needle and are carried across the warp and there supported and subsequently packed into position in the woven structure by the action of the loom reed.

Reference is to be had to the accompanying drawings, forming a part hereof, in which Figure 1 is a plan view of parts of a loom, showing my improved construction;

Figure 2 is a longitudinal sectional view of the structure shown in Figure 1;

Figure 3 is'a sectional view, looking at the rear of the batten;

Figure 4 is a diagrammatic view illustrating the path traveled by the thread-supporting finger: and

Figures 5 to 10, inclusive, show the improved structure in itsvarious stages of operation.

In the preferred embodiment of the invention, as disclosed in the accompanying drawings, l-indicates the loom batten. The same may be hung in the conventional manner on downwardly ex tending arms or supported upon arms 2 that are pivoted at 3 on the frame of the loom. The batten is mounted so that the same rocks in the usual manner common to looms of this character, such rocking action thereof being secured by In the structureof this invention, these several ored differently from the others.

the well-known form of mechanism commonly employed for this purpose.

The batten carries a reed, consisting of a frame 4 and closely spaced wires 5 through which the various warp threads 6 extend. These warp Q threads 6 are selectively raised and lowered by heddles '7 in the conventional manner according to the pattern to be woven. The warp threads 6, after passing through the reed 5, are shown extending into and forming a part of the completed a woven fabric strip 8, which is herein shown as being a strip of woven labels, a tape, a ribbon or a section of broad piece goods. The woven structure extends over a glass rod 9 and thence passes downwardly where it may be rolled up in the usual. way.

The ground weft thread 10 employed in the formation of the woven strip .8 is supplied from a shuttle-11 which moves across the warp in the guides 12 carried by the batten 1. In additionto the warp threads 6 and ground weft thread 10, colored weft threads are inserted toproduce the pattern in the weaving process of forming the strip. In ordinary Jacquard weaving such colored weft threads are carried by separate shuttles and when a particular color is to be inserted in the shed, the remaining shuttles are held stationary while the shuttle containing that particular colored thread is moved across the shed.

colored thread shuttles are dispensed with and instead the work of the laying .weft threads of 1 various colors in the shed is carried out by; a

single needle mechanism. when one or the other colored threads is being laid in the shed, the ground weft thread 10 is omitted, unless as incertain cases, it is to form a pattern in cooperation with the colored thread. In such case it islaid' in the shed co -extensively with the colored thread. These colored threads are disclosed at 13. In illustrating the operation of my invention, I have shown three of .these colored threads employed, each of the threads being col- It will be understood that the number of colored threads used -may be varied according to the number of colors employed in the woven pattern to be produced, and that the number herein shown is merely for illustrative purposes. These' colored threads 13 are supplied from spools or cones situated at some desirable point on the loom and the same are engaged by heddles located at the rear of the reed. The heddles which raise and lower the various colored threads are not shown since the same arefsimi lar to those conventionally em- A10 the other of the colored threads and carries the same across the warp threads between the raised and lowered warp threads, and the colored thread so carried is held, and by action of the reed is subsequently woven into the strip 8, while the needle device has receded for the purpose of receiving and carrying the next colored thread.

' The needle device consists of the two elements 14 and 15. Each of these members is in the form of an angular plate having a horizontal part 15a and a downwardly projecting portion 16a, these parts overlapping on both plates. The plate 14 has its end terminating in a hook portion 17 by which one or the other of the colored threads 13 is received as shown in Figure 5. This hook portion is adapted to be closed by a nose forming a latch portion 18 provided at the end of the member 15. To hold the two elements 14 and 15 together in connected relationship, yet permitting a slight movement of one relative to the other, the member 14 is provided with a projecting pin 19 which moves in a slot 20 provided in the horizontal part 15a of the latch-member 15.

At the back of the batten 1 is secured a guidestrip 21 having a groove or track 22 in which is mounted a pair of slides 23 and 24. The slide 23 is secured to the lower end of the downwardlythe batten 1, are provided. The spring 25 engaged a pin 27 on the slide 23, the pin being located in a recess 28 provided in the slide, while the spring 26 similarly engages a pin 29 located in a recess 30 in the slide 24. I

To move the slides 23 and 24 along in the track 22, a belt 31 is provided. Said belt has one of its ends attached as at 32 to the slide 23. The belt then extends over a roller 33 rotatably mounted on a pin 34 located on the rear of the batten, and thence extends downwardly where it has its lower end attached at 35 to the arm 36 of a bell-crank lever that is pivoted on a shaft 3'7. The other arm 38 of the bell-crank lever is pivotally connected at 39 to a link 40 that is connected to an arm-located behindthe arm '82 and operated by a cam 41. Through the mechanism -just described, the needle, comprising the hook member 14 and latch member 15 therefor are given a reciprocating movement.

Any one of the selected colored threads 13 may be engaged by the hook as shown in Figure 5, the heddles through which said threads pass serving to hold the undesired threads elevated and thus away from the hook'1'7. Under. the influence of the cam 41 the belt 31 exerts a pull on the slide 23. Said slide, carrying the latch member 15, moves relative to the other slide-24 and attached hook member 14, until the end of the slot 20 is reached by the pin 19, whereupon the two slides are moved along together, the hook 17 during such movement being held closed by the latch 18 so that the selected thread 13d is held within the closed hook and drawn across the warp under the lifted warp threads 18a (Fig. 6) until the limit of movement of the two slides 23 and 24 to the left is reached, as shown in Fig. 6.

At this point the thread 13a that has been carried across the warp threads by the hook 17, is engaged and elevated by an upwardly tilted finger 42 which projects from a'vertically movable plate 43 to which it is attached by a screw 44. This plate is movable vertically through the batten 1 by means of a lever 45 that is pivoted at 46 to th'e'batten. Said lever has a headed pin 4'7 which extends through an opening 48 in the laterally bent end on the plate 43 and acts to raise and lower the plate 43 when required. The other end of the lever 45 is connected at 49 to a link 50 which has its lower end attached at 51 to an arm 52 of a bell-crankv lever that is pivoted at 3'7 and has its other arm 53 connected at 54 to a link 55 that connects at 100 to a cam lever located behind the lever 82 and which is operated by a cam 56.

Under the influence of the cam 56, the. plate 43 carrying the thread-engaging finger 42, is elevated to lift the thread 13a. as shown in Figure '7. While the thread 13a has been brought across the warp and engaged and raised by the tilted finger 42, a hooked finger 5'7 has been moving to next engage the thread 130. This finger 57, which acts to hold the thread 13a under tension until it is packed in position in the woven strip, is more clearly disclosed in Figures 1 and 2, is attached at 58 to an arm 59 that is secured on a shaft 60. The finger, 57 has a laterally bent free end at 61 which is inserted beneath the elevated thread 13a as shown in Figure 8. The member 42 then descends, leaving the thread 13a solely supported by said finger portion61, as shown in Figure 8.

To impart the required movement to the finger 5'7 to cause it to move through the path de fined by the dotted line in Figure 4, suitable actuating mechanism is provided. Such mechanism consists of means for rocking the shaft 60 as well as its support and also the means for shifting said shaft and its associated parts endwise. The means for securing the endwise movement of said shaft 60 will now be described. At its opposite ends the shaft 60 isrockingly supported in arms 62 and 63 which have their lower ends fixed on a lower shaft 64. This shaft 64 is adapted to be rocked as well as shifted lengthwise in bearings 65 and 66 in, which it is mounted. It is shifted lengthwise by means of a cam 6'7 operating upon a cam lever located in back of the lever 82, and a which is secured at 68 to a link 69 which has its other end attached at 71 to the arm '70 of a bell-crank lever. Said lever is pivoted at 72 to a bracket '73 attached to a part 74a of the loom frame.

The other arm '74 of the bell-crank lever is pivotally connected at '75 to a link '76 which has its other end pivotally attached at '77 to the arm 62. It will now be clear that through the mechanisrh just described, the shafts 60 and 64 and curved path 79 (Figure 4) as will be later ei'r-' plained. r I

The shaft.64 is rocked by means of a cam 80 which operates upona roller 81 mounted on the cam lever 82 that is pivoted at 83. A link 84 con nects the lever 82 with an arm 85 secured to the shaft 64. Said shaft 64 when rocked tends to move the arms 62' and 63 in the direction of the batten. When this occurs, a supplemental rocking motion is imparted to the shaft 60, which motion-serves to elevate the finger 57 carried thereby, thus imparting to said finger the refq1iiredelevating movement which inserts it beneath the thread 13a to elevate said thread as shown in Figure 8. This supplemental rocking action of the shaft 60 is attained by means of a lever 86 that is pivoted at 87 to,the arm 62. The lever 86 is provided at its lower end with a laterally projecting stud 86a which is pivotally connected at 8741 to the end of a link 88 which has its opposite end pivoted at 88a in a cross member 89 of the loom frame. The upper end of the lever 86 is slotted at 90 to receive the end of a crank 91 secured on theshaft 60. The pivoted arrange-E ment of the link 88 permits the slight longitu-- dinal movement of the shaft 64 required to carry the finger 57 along the path indicated at 78 in Fig. 4.

The operation of my improved structure will now be readily understood. The initial position of the apparatus is disclosed in Figure 5. Here the colored thread 13a is shown located in the hook portion 17 of the member 14. The other colored threads 13 have been elevated by the ac tion of the heddles so that the same are held out of the path of the needle member. Under-the pull of the belt 31, the latch-member 15 is moved relative to the hook member 14 so that the hook 17 is closed by the nose 18 of the member 15. The pin 19 reaches the end of the slot 20 and when this occurs the two members 14 and 15 are moved along together so that the thread 13a held in the hook 17 is carried across the warp 6 beneath the lifted warp threads 18a as shown in Fig. 6. While all of the colored threads are carried for the same uniform distance across the warp as selectively required, it will be understood that these threads are not inserted in the weave entirely across the shed, their positioning therein being only to the extent required by the particular pattern formed by them. The insertion of these colored threads is, as is usual in woven label weaving, regulated by the heddles, the movement of which is governed by the Jacquard pattern. In the meantime, the finger 57 begins its movement on the outside of the lifted warp threads 18a and toward the needle member (see Figure 6) along the path defined by the line 79 of Figure 4. The plate 43 is then elevated and the tilted finger 42 thereon, is projected under the thread 13:: and elevates it slightly. To permit this action, the hook 17 has been opened and the needle member then recedes. In the meantime the member 57 has followed the curved path 79 (Figure 4) so that its end part 61 has been thrust upward by the supplemental rocking movement, of the shaft 60 caused by engagement of the crank 91 with the slot 90, so that said part 61 is inserted beneath the thread 13a as shown in Figure 7. The member 43 then descends, leaving the thread 13!:

supported upon the part 61 of the finger 57 as learly shownin Fig. 8. Dining the operation of the various elements just described, the batten 1 has been moving toward the woven strip 8. The

-"' finger 57 now moves toward the strip along the path 101 (Figure 4) with a descending movement until it reaches the woven terminal 102 (see Figure 10) on the strip 8.where it holds the thread 13a until it is packed in place in the shed by the reed 5. When the finger 57' reaches the position shown in Fig. 10, the heddles controlling the lifted warp threads 18a function to lower these particular warp threads and raise others so that the portion of the thread 13a which has been laid in the shed is heldtherein by this change in the lift. The reed 5 carried, by the batten 1, now packs the thread 13a in place in I the woven strip at the terminal 102, the member 57 withdrawing after the thread has been packed in position. The action just described is repeated for any of the desired colored threads. The colored threads not required, are merely elevated by heddle action and when required are lowered so that the thread to be inserted in the weave is brought to rest in the hook 17 and carried across the warp thereby as herein explained. The member 57 constitutes a movable tension member a which acts to holdthe selected colored thread 13 after it has been carried across the shed, until it has been packed therein by the action of the reed.

I have herein specifically described my inven-. tion as applicable to the weaving of b'roadfabrics, ribbon or strip weaving or for the production of woven labels in strip form, It will be understood that the. structure may, however, be used 105 for jacquard or other weaving of various kinds without departing from the spirit of this invention.

What I claim is:

1. In a loom, a needle member for engaging any one of several weft threads, means for moving said needle member with the thread engaged thereby across the warp, a thread-elevating member located at the end of the path of movement 01' the needle member, meansforelevating said member to cause the same t6 engage the thread carried by the needle member and to levate'the same, and a thread-engaging member adapted to receive the thread from the elevating memher and hold the same under tension until it is packed in position in the woven structure.

2. In a loom, a reciprocating needle member comprising a hook part and a latch part, means for engaging the latch part and moving the same relative to thehook part to close saidhook part, means for opening the hook part at the end of movement of the needle member, an elevating finger for receiving and raising a thread carried by the'needle, and a finger receiving the thread from the elevating finger and holding it under tension until it is packed in the woven structure.

3. In a loom, a reciprocating needle adapted to be moved across the shed, said needle having a recess for receiving one of several threads, means for closing said recess at the beginning of 138 travel of the needle across the shed, means for opening the recess at the end oftravel of the needle, means for elevating the particular thread carried by the needle, means for receiving said thread from the elevating means and holding it 140 under tension, and means for packing said thread in the woven structure.

4. In a loom, a reciprocating needle, adapted to be moved across the shed, means on said needle for receiving one or more selectedthreads, means for receiving and elevating the particular thread carried by the needle at the end or the travel of the needle means for receiving said read from the elevating means and holding it.

the shed, a vertically movable member adapted to engage the thread held in the recess and raise it out of said recess, a tension member inserted beneath the raised thread to receive the same from the vertically movable member, and

,means for packing" said thread in the woven structure. 1

MAX HAHNE. 

